Constructing an Array of Anchored Single-Molecule Rotors on Gold Surfaces

Autor:	Yu-Yang Zhang, Yueqiang Liu, Zhihai Cheng, Hong-Jun Gao, Qing Huo Liu, Li Gao, Haigang Zhang, Werner A. Hofer, Nan Jiang, Shixuan Du, W. F. Qiu
Rok vydání:	2008
Předmět:	Surface (mathematics) Fabrication Materials science General Physics and Astronomy Nanotechnology Molecular rotors Rotation Molecular physics law.invention Chemical bond law Molecular motor Molecule Physics::Chemical Physics Scanning tunneling microscope
Zdroj:	Physical Review Letters. 101
ISSN:	1079-7114 0031-9007
Popis:	Molecular rotors with a fixed off-center rotation axis have been observed for single tetra-tert-butyl zinc phthalocyanine molecules on an Au(111) surface by a scanning tunneling microscope at LN2 temperature. Experiments and first-principles calculations reveal that we introduce gold adatoms at the surface as the stable contact of the molecule to the surface. An off-center rotation axis is formed by a chemical bonding between a nitrogen atom of the molecule and a gold adatom at the surface, which gives them a well-defined contact while the molecules can have rotation-favorable configurations. Furthermore, these single-molecule rotors self-assemble into large scale ordered arrays on Au(111) surfaces. A fixed rotation axis off center is an important step towards the eventual fabrication of molecular motors or generators.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db0a007d0828f67dafffc315650e3eb1 https://doi.org/10.1103/physrevlett.101.197209 Zobrazit plný text záznamu